Pc DOES NOT boot with HD4890 // BOOTS WITHOUT IT! HELP?!

What are your specs for the other components (especially the power supply)?

Also, are both 6 pin power cables connected?

+1 for above 2 posts.

@OP: List full specs

Antec 902 case, fully working (fans etc)
ASUS M4A78T-E motherboard
Phenom II X4 955 Black Edition With Noctua U12P Cpu cooler.
XFX HD 4890
PSU: Antec TRUEPOWER 650 Watt ( 2 6 pin's are connected to the graphics card.)


I dont see how this is relevant though.. the graphics card is installed correctly, its just some kind of Bios setting or driver that's missing.. Or am I wrong?

NEWS:

Got to boot in windows with the Hd4890 in it! BUT!: I had to set the standard (default) GFX to onboard.

Now I get error code 43 for the Hd4890

some more info about the error?

Device information
Name: ATI Radeon HD 4800 Series

Id: PCI\VEN_1002&DEV_9460&SUBSYS_27021682&REV_00\4&204EAC5&0&0010

Also I did a bios update.. Didnt do alot..

PLEASE GUYS :<

Sounds like a driver issue for your HD4890. What drivers do you have installed (and what OS are you using)?

Windows 7 64-bit (Ultimate) And I've tried installing and uninstalling drivers, but when I try to install any drivers for the detected 'Radeon 4800 series' I get Error code 43.

I'm returning my GFX card for testing.

Good luck. Let us know if that works.

Before doing that - take the 4890 out of the system - boot into windows using the onboard - go in and change the video driver to the default VGA driver and shut down the system. - Reinstall the 4890 and ensure it is all hooked up (including moving the monitor plug to the 4890 - boot the system and enter BIOS and disable the onboard and set the default boot video to the PCI-e slot - save the changes and let the system boot - after windows loads go in and install the drivers for the 4890 (If it doesn't do this automatically using the found new hardware)

I had this problem exact problem, the card was FUBAR & apparently it was my fault so I'm £150 out of pocket. Never buying ATI again unless I have to.